Chemical Engineering MCQs

6108 MCQs  (Page 96 of 611)

Phenol formaldehyde____________________?
A. Employs addition polymerisation
B. Employs condensation polymerisation
C. Is a monomer
D. Is an abrasive material
Lithophane is ___________________?
A. Explosive
B. White lead
C. Filter aid
D. Zns (white pigment)
Presence of carbonaceous matter in the sewage____________________?
A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic
CreAtures
B. Reduces sulphate ions to sulphides causing obnoxious smell
C. Increases the quantity of chlorine used for its purification
Dechlorination of treated water is necessary to __________________?
A. Remove residual turbidity
B. Reduce the bacterial load on filter
C. Control taste and odour
D. Remove chlorinous taste
______________________ of quicklime produces slaked lime ?
A. Hydration
B. Dehydration
C. Hydrogenation
D. None of these
An oil is converted into fat by its___________________?
A. Hydrogenation
B. Hydrolysis
C. Hydrocracking
D. Hydration
Economics of ‘Solvay Process’ depends upon the efficiency of __________________?
A. Carbonating tower
B. Ammonia recovery
C. Ammonia recovery and size of the plant
D. Ammoniation of salt solution